> See [Android release process](https://www.mediawiki.org/wiki/Wikimedia_Apps/Team/Release_process#Production_releases) for process documentation.
**Release version**: 2.1.136
**Release tag**: r/2.1.136-r-2015-12-09
**Release SHA1**: 334cbd3640f943348a88f33df138d4b4fa1f8a1f
**Google Play Store Beta app build and publish date**: 2015-12-09
**Production APK build date**: 2015-12-09
**Google Play Store production (Alpha testing) publish date**: 2015-12-09
**Amazon Appstore APK build date**: 2015-12-09
**Other partner APKs build date**: 2015-12-09
**Regression Testing URL**: https://docs.google.com/spreadsheets/d/1rWbxPnWfiqK-c3uNaOv1ajvviUzQepyARkBGVqf8tqo/edit#gid=0
**Google Play Store Production app rollout schedule**:
- 100% (notify mobile-l): 2015-12-11
**Amazon Appstore publish date**: 2015-12-11
== Change highlights
Refer to the tasks completed in the following sprints:
#mobile-app-android-sprint-70-ytterbium
#mobile-app-android-sprint-71-lutetium
#mobile-app-android-sprint-72-hafnium